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ASTM Grade HH Steel vs. ASTM Grade LC2-1 Steel

Both ASTM grade HH steel and ASTM grade LC2-1 steel are iron alloys. They have 65% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HH steel and the bottom bar is ASTM grade LC2-1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
240
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
20
Fatigue Strength, MPa 150
430
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 580
810
Tensile Strength: Yield (Proof), MPa 270
630

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Maximum Temperature: Mechanical, °C 1100
450
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 14
46
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 20
5.0
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.7
1.9
Embodied Energy, MJ/kg 53
25
Embodied Water, L/kg 180
60

Common Calculations

PREN (Pitting Resistance) 27
3.1
Resilience: Ultimate (Unit Rupture Work), MJ/m3 53
150
Resilience: Unit (Modulus of Resilience), kJ/m3 190
1040
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
29
Strength to Weight: Bending, points 20
25
Thermal Diffusivity, mm2/s 3.8
12
Thermal Shock Resistance, points 12
24

Alloy Composition

Carbon (C), % 0.2 to 0.5
0 to 0.22
Chromium (Cr), % 24 to 28
1.4 to 1.9
Iron (Fe), % 52.9 to 64.8
92.5 to 95.3
Manganese (Mn), % 0 to 2.0
0.55 to 0.75
Molybdenum (Mo), % 0 to 0.5
0.3 to 0.6
Nickel (Ni), % 11 to 14
2.5 to 3.5
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.045